CN106591921A - ELID (Electrolytic In-process Dressing) grinding electrolyte for copper-based brazed grinding wheel - Google Patents

ELID (Electrolytic In-process Dressing) grinding electrolyte for copper-based brazed grinding wheel Download PDF

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Publication number
CN106591921A
CN106591921A CN201611116583.XA CN201611116583A CN106591921A CN 106591921 A CN106591921 A CN 106591921A CN 201611116583 A CN201611116583 A CN 201611116583A CN 106591921 A CN106591921 A CN 106591921A
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electrolyte
elid
sodium
copper
carbosphere
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CN106591921B (en
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伍俏平
王煜
郑维佳
赵恒�
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Hunan University of Science and Technology
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Hunan University of Science and Technology
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    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
    • C25D11/02—Anodisation
    • C25D11/34—Anodisation of metals or alloys not provided for in groups C25D11/04 - C25D11/32
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M173/00—Lubricating compositions containing more than 10% water
    • C10M173/02—Lubricating compositions containing more than 10% water not containing mineral or fatty oils
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/04—Elements
    • C10M2201/041—Carbon; Graphite; Carbon black
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/08—Inorganic acids or salts thereof
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/08—Inorganic acids or salts thereof
    • C10M2201/081—Inorganic acids or salts thereof containing halogen
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/087—Boron oxides, acids or salts
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/02—Hydroxy compounds
    • C10M2207/021—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/022—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms containing at least two hydroxy groups
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/04—Ethers; Acetals; Ortho-esters; Ortho-carbonates
    • C10M2207/044—Cyclic ethers having four or more ring atoms, e.g. furans, dioxolanes
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/56—Boundary lubrication or thin film lubrication
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/20—Metal working
    • C10N2040/22—Metal working with essential removal of material, e.g. cutting, grinding or drilling

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Abstract

The invention discloses ELID (Electrolytic In-process Dressing) grinding electrolyte for a copper-based brazed grinding wheel. The electrolyte is mainly prepared through sodium chloride, sodium molybdate dehydrate, sodium tetraborate, glucose, glycerin, carbon microspheres and water. According to the electrolyte, all components are coordinately matched with each other; the performance is outstanding; an oxide film generated on the surface of the grinding wheel is high in adhesive force, high in uniformity and high in self-lubricating capacity; the electrolyte is particularly applicable to a copper tin titanium based grinding wheel ( comprising 75-85% by mass of copper, 10-15% by mass of tin, and 5-10% by mass of titanium); the problems of poor density of the oxide film on the surface of the copper-based brazed grinding wheel and low adhesive force of a film layer in the ELID grinding process can be effectively overcome; the precision of an ELID grinded surface can be improved; the service life of the grinding wheel can be prolonged; in addition, the electrolyte has the characteristic of being environmentally friendly.

Description

A kind of ELID grinding electrolyte for copper base brazing emery wheel
Technical field
The present invention relates to the ELID grindings in Precision Machining field, and in particular to a kind of for copper base brazing emery wheel ELID is ground electrolyte.
Background technology
In ELID grinding process, the machining accuracy of surface of the work, the loss speed of emery wheel are heavily dependent on ELID bath compositions and grinding wheel base body material.Copper base brazing wheel face generate oxide-film adhesion is low, lack of homogeneity, from It is that copper base brazing emery wheel is main present in ELID grinding process that lubricating ability is not by force, bath composition does not have pollution etc. to environment Problem.
The content of the invention
In order to overcome the problems referred to above, the present invention to provide a kind of ELID grinding electrolyte for copper base brazing emery wheel.
The technical solution used in the present invention is：
A kind of ELID grinding electrolyte for copper base brazing emery wheel, including following component by mass percentage：Sodium Chloride 0.1～0.5%, Sodium Molybdate Dihydrate 5～9%, sodium tetraborate 0.3～0.8%, glucose 0.2～0.7%, glycerol 0.1～0.5%, Carbosphere 0.3～0.9%, balance of water；
Preferably, Sodium Chloride 0.1～0.4%, Sodium Molybdate Dihydrate 5～8%, sodium tetraborate 0.3～0.7%, glucose 0.2～0.6%, Glycerol 0.1～0.4%, carbosphere 0.3～0.8%, balance of water；
More preferably, Sodium Chloride 0.1～0.3%, Sodium Molybdate Dihydrate 5～8%, sodium tetraborate 0.4～0.7%, glucose 0.3～ 0.6%th, glycerol 0.1～0.4%, carbosphere 0.4～0.8%, balance of water；
More preferably, Sodium Chloride 0.1～0.3%, Sodium Molybdate Dihydrate 5～7%, sodium tetraborate 0.4～0.6%, glucose 0.3～ 0.5%th, glycerol 0.1～0.3%, carbosphere 0.4～0.7%, balance of water；
More preferably, Sodium Chloride 0.2～0.3%, Sodium Molybdate Dihydrate 6～7%, sodium tetraborate 0.5～0.6%, glucose 0.3 ～0.4%, glycerol 0.2～0.3%, carbosphere 0.5～0.7%, balance of water.
In the above-mentioned ELID grinding electrolyte for copper base brazing emery wheel, described carbosphere size is received for 300～500 Rice, Jing solvent-thermal methods are prepared, and rich in functional groups such as hydroxyl, carboxyl and carbonyls, these active groups give on carbosphere surface The good physical adsorbability of carbosphere, can improve in being effectively distributed in oxidation film layer its compactness, adhesiveness, improve film layer from Lubricating ability.
In the above-mentioned ELID grinding electrolyte for copper base brazing emery wheel, described electrolyte is water based electrolyte；It is main Electrolyte is Sodium Molybdate Dihydrate, and assisted electrolysis matter is Sodium Chloride；Wherein chloride ion can the effective very strong titanium oxide of spot corrosion insulating properties, Prevent emery wheel electrolysis film forming ability；With glucose as passivation corrosion inhibiter, wherein sodium tetraborate serves as alkaline agent to sodium tetraborate, Electrolyte is made in alkalescence, sodium tetraborate and the mixed solution of glucose, can effectively slow down copper and tin Titanium base in alkaline environment Corrosion, prevent emery wheel loss it is too fast；Glycerol also functions as the primary lubricant agent in grinding fluid while serving as fluid lubricant； Carbosphere is a kind of good kollag, can effectively improve the self-lubricating capacities of emery wheel；Each component is combined by proper proportion, Coordinated, plays one's part to the full.
Above-mentioned electrolyte, weighs each component respectively, mixes by above-mentioned mass ratio and be obtained in water.
Compared with prior art, beneficial effects of the present invention are as follows：
1st, electrolyte of the invention, each component coordinated, function admirable, can make the oxide-film that wheel face is generated have stronger Adhesion, uniformity are good, and have preferable self-lubricating capacities, and (quality accounting is to be particularly suited for copper and tin Titanium base emery wheel：Copper 75%～85%, stannum 10%～15%, the finished surface precision of titanium 5%～10%), can improve ELID grindings extend the use longevity of emery wheel Life.
2nd, film layer compactness is high：Particle diameter is that hundreds of nanometer of carbosphere is uniformly distributed in oxidation film layer, is effectively improved The structure of film layer, improve compactness so that processing is more steady.
3rd, film layer adhesiveness is strong：Grinding wheel base body has electric field as anode, the electronegative carbosphere to being wrapped in film layer The adsorption of power so that film layer is difficult for drop-off.
4th, composition of the grinding electrolyte without environmental pollution of the invention, will not be to environment.
5th, carbosphere is a kind of kollag, can effectively improve the self-lubricating capacities of oxidation film layer.
Specific embodiment
The present invention is described in further details with reference to specific embodiment, but the present invention is not limited to this.
The ELID grinding electrolyte for copper base brazing emery wheel of the present invention, the concrete composition of each embodiment are as shown in table 1.
The electrolyte composition unit of 1 each embodiment of table：wt%
Embodiment is numbered Sodium Chloride Sodium Molybdate Dihydrate Sodium tetraborate Glucose Glycerol Carbosphere Water
Embodiment 1 0.1 5 0.4 0.4 0.2 0.6 Surplus
Embodiment 2 0.2 6 0.5 0.5 0.1 0.4 Surplus
Embodiment 3 0.3 7 0.5 0.3 0.3 0.5 Surplus
Embodiment 4 0.2 6 0.6 0.4 0.2 0.7 Surplus
Embodiment 5 0.1 7 0.6 0.5 0.3 0.6 Surplus
Embodiment 6 0.4 8 0.7 0.2 0.4 0.8 Surplus
Embodiment 7 0.5 9 0.3 0.7 0.4 0.9 Surplus
Embodiment 8 0.3 6 0.8 0.6 0.5 0.3 Surplus
When carrying out ELID grindings using the electrolyte of the present invention, wheel face can generate layer oxide film, contain in this layer of oxide-film The titanyl compound for having insulating properties very strong, during these oxides cause circuit, resistance increase electric current reduces, and causes electrolysis ability to subtract Weak, the film layer of generation is excessively thin, and the addition of chloride ion can effective spot corrosion titanyl compound, it is ensured that electrolysis proceeds；In electrolyte Middle addition carbosphere, the oxide-film that can make generation is finer and close, uniformity more preferably, and the adhesion of the tunic and grinding wheel base body compared with By force, it is not easy to come off.After carbosphere is added in electrolyte, as the mean diameter of carbosphere is about hundreds of nanometer, and its Surface is rich in hydroxyl, carboxyl, carbonyl isoreactivity hydrophilic group, and these groups can capture electronics and cause carbosphere negatively charged, and Due to hydrophilic so that its favorable dispersibility in group water solution；Can uniformly be distributed in film layer, change film layer structure, carry The compactness and uniformity of high film layer, increases machining accuracy.Due to carbon particulate carry negative electricity, as anode matrix to carbosphere There is adsorption, because carbosphere is wrapped in oxide-film, emery wheel is converted into the absorption affinity of carbosphere and oxidation film layer is glued Attached power, improves the adhesiveness of oxidation film layer, effectively overcomes the caducous problem of film layer.The addition of sodium tetraborate makes electrolyte In alkalescence, and under alkaline environment, glucose can effectively reduce the corrosion of cuprio, extend emery wheel service life.Due to carbon it is micro- Ball is a kind of kollag, and the self-lubricating property of emery wheel can be effectively improved in ELID grinding process.
Sum it up, the electrolyte each component coordinated of the present invention, function admirable, for copper base brazing wheel grinding, The oxide-film of its Surface Creation can be made to have stronger adhesion, uniformity good, and there are preferable self-lubricating capacities.

Claims (6)

1. a kind of ELID grinding electrolyte for copper base brazing emery wheel, it is characterised in that including by mass percentage as Lower component：Sodium Chloride 0.1～0.5%, Sodium Molybdate Dihydrate 5～9%, sodium tetraborate 0.3～0.8%, glucose 0.2～0.7%, the third three Alcohol 0.1～0.5%, carbosphere 0.3～0.9%, balance of water.
2. the ELID for copper base brazing emery wheel according to claim 1 is ground electrolyte, it is characterised in that include by matter The following component of amount percentages：Sodium Chloride 0.1～0.4%, Sodium Molybdate Dihydrate 5～8%, sodium tetraborate 0.3～0.7%, glucose 0.2～0.6%, glycerol 0.1～0.4%, carbosphere 0.3～0.8%, balance of water.
3. the ELID for copper base brazing emery wheel according to claim 1 is ground electrolyte, it is characterised in that include by matter The following component of amount percentages：Sodium Chloride 0.1～0.3%, Sodium Molybdate Dihydrate 5～8%, sodium tetraborate 0.4～0.7%, glucose 0.3～0.6%, glycerol 0.1～0.4%, carbosphere 0.4～0.8%, balance of water.
4. the ELID for copper base brazing emery wheel according to claim 1 is ground electrolyte, it is characterised in that include by matter The following component of amount percentages：Sodium Chloride 0.1～0.3%, Sodium Molybdate Dihydrate 5～7%, sodium tetraborate 0.4～0.6%, glucose 0.3～0.5%, glycerol 0.1～0.3%, carbosphere 0.4～0.7%, balance of water.
5. the ELID for copper base brazing emery wheel according to claim 1 is ground electrolyte, it is characterised in that include by matter The following component of amount percentages：Sodium Chloride 0.2～0.3%, Sodium Molybdate Dihydrate 6～7%, sodium tetraborate 0.5～0.6%, glucose 0.3～0.4%, glycerol 0.2～0.3%, carbosphere 0.5～0.7%, balance of water.
6. the ELID for copper base brazing emery wheel according to any one of claim 1 to 5 is ground electrolyte, and its feature exists In described carbosphere size is 300～500 nanometers, and described carbosphere Jing solvent-thermal methods are prepared.
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110129119A (en) * 2019-05-11 2019-08-16 北京工业大学 A kind of ELID grinding dedicated grinding fluid of plastic material and preparation method thereof
CN110129118A (en) * 2019-03-24 2019-08-16 北京工业大学 ELID is ground dedicated grinding fluid of aluminum matrix composite and preparation method thereof
CN111203811A (en) * 2020-03-18 2020-05-29 湖南科技大学 Preparation and electrolytic finishing method of brazing grinding wheel with self-lubricating function and good electrolytic film forming property

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110129118A (en) * 2019-03-24 2019-08-16 北京工业大学 ELID is ground dedicated grinding fluid of aluminum matrix composite and preparation method thereof
CN110129118B (en) * 2019-03-24 2022-01-14 北京工业大学 Grinding fluid special for ELID grinding aluminum-based composite material and preparation method thereof
CN110129119A (en) * 2019-05-11 2019-08-16 北京工业大学 A kind of ELID grinding dedicated grinding fluid of plastic material and preparation method thereof
CN110129119B (en) * 2019-05-11 2021-12-10 北京工业大学 Grinding fluid special for ELID grinding of plastic material and preparation method thereof
CN111203811A (en) * 2020-03-18 2020-05-29 湖南科技大学 Preparation and electrolytic finishing method of brazing grinding wheel with self-lubricating function and good electrolytic film forming property
CN111203811B (en) * 2020-03-18 2022-02-22 湖南科技大学 Preparation and electrolytic finishing method of brazing grinding wheel with self-lubricating function and good electrolytic film forming property

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